what do you mean by PF correction. A motor is rated at 15
kw,415 volts, 0.7 pf and eff of 0.92. The powerfactor is
improved to 0.98 by adding capacitors at the bus. calculate
the current drawn by motor under full load condition before
and after pf correction

Answer Posted / k.prakashchandra

You are connecting cap between motor and supply tapping
point. So, the first answer is correct . Current drawn by
motor and the feeder remains the same.There will be
reduction in current in the bus bar

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Whether power factor should be high or low? Why?

665


WHY BLADE & JOW OF ISOLETOR IN SUBSTATION?

3905


What are the characteristics of negative feedback?

616


Is it possible to implement Restricted Earth Fault protection for a transformer without neutral CT?

3392


why h parameter are called as hybrid parameter?

1549






Can I use distributon class/transmission class Lightning arresots for protecting the building? If not why please explain?

1432


What is the type of earth fault protection used in battery? explain.

1871


What should be the magnetic balance test values for a 3 phase delta/star connected single primary dual secondary winding transformer (90 MVA / 2 X 45 MVA TRANSFORMER)

1425


what is the physical connection of a analog i/p to a analog i/p module (ab plc)and through a analog o/p module(ab plc) to a analog o/p . and how all the process control by scada

1447


Why IR value of the (HT cable Plus synchronous motor) is less while individually having IR values in GΩ?

1361


I need to connect a synchronous generator to the grid using automatic synchronization and two circuit breakers (one for synchronization, one for end connection to the grid), how to determinate the required diameter of the cables?

2063


what happen if the load connected to the induction motor is taken away? the same question for synchoronous generator in synch i think that the the exitation voltage will appear on the terminal only if so plz answer me

1546


how does a shunt reactor maintains the bus voltage???

1588


block diagram of 2 ups system connected in hot stand by mode?

7498


what are the types of electromagnetic forces developed in practical transformer?

2175